But if panspermia is indeed possible, and life can be readily dispersed throughout the cosmos, it would fundamentally change how we earthlings see ourselves.
" Our life might have originated in Mars if panspermia is possible, " says Akihiko Yamagishi, an astrobiologist at the Tokyo University of Pharmacy and Life Sciences and the lead author of the new study.
But the idea that life was delivered to Earth on space rocks, which goes by the awesome name panspermia… well there's just no proof it ever happened, and it doesn't really explain the origin of life anyway.